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Finding the Fourth Proportional to 57,222.40, 85,841.70 and 17,775.40

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Solution

The fourth proportional to 57,222.40, 85,841.70 and 17,775.40 is: 26,665.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,222.40 : 85,841.70 = 17,775.40 : x
  2. Step 2: Convert to fraction form
    57,222.40/85,841.70 = 17,775.40/x
  3. Step 3: Cross multiply
    57,222.40x = 85,841.70 × 17,775.40
  4. Step 4: Simplify right side
    57,222.40x = 1,525,870,554.18
  5. Step 5: Solve for x
    x = 1,525,870,554.18/57,222.40
  6. Step 6: Final answer
    x = 26,665.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.